baber/WOPTO huggingface dataset:
Patent GB-1039781-A (GB)
Title: Laser pumping control
IPC: H01S3/0915
Filed: 1963-02-13
Abstract: 1,039,781. Lasers. P. H. KECK, and M. J. KECK. Feb. 13, 1963, No. 5847/63. Heading H3B. A solid state active medium having reflective end surfaces which are plane and parallel is enclosed by a reflector having first and second openings for the pumping light and emergent laser beam, respectively, an optical condenser system being located between the pumping light source and the first opening. As shown in Fig. 1, a ruby or neodymium-doped glass rod 10 is supported in openings 12, 13 of a hollow spherical reflector 11, one or both ends of the rod partially transmitting an emergent laser beam 10a. A pumping light source 20, e.g. a Xenon lamp, is positioned externally of the reflector 11, and the pumping light is directed through a reflector opening 14 by an optical condenser system comprising an elliptical reflector 21, an optional filter 18, and lenses 15, 16, 17. A further opening associated with a condenser system 26 may be provided in the reflector for light from a source 25, this light being modulated by a Kerr cell which is controlled from a signal amplifier 22. To provide a modulated output the light from pumping source 20 is restricted to that necessary to bring the laser to about the threshold level for stimulated emission, this pumping being then augmented by the modulated light from source 25. In a modification, Figs. 5 and 6 (not shown), a cylindrical rod 42 of active medium is located in a hollow cylindrical reflector 40 having a flared end 45 for receiving the pumping radiation, a small opening 43 for emergent light being provided in the opposite end wall of the reflector. In a further modification, Figs. 7 and 8 (not shown), the hollow reflector and active medium rod 50 are of square cross-section, and either the rod or the reflector are convergently tapered lengthwise of the structure from the pumping source so that the pumping light intensity is uniform throughout the length. An alternative arrangement, Fig. 4 (not shown), which may be used in the Fig. 5 embodiment is the use of a solid reflector 30 formed, e.g. of glass which clads the active medium 31, a reflective coating 35 being applied to the outer surface of the solid cladding. Two openings 32, 34 for pumping and emergent light are provided as before. In the embodiments using a hollow reflector, the space between the reflector and rod may be filled with air, a liquid coolant or a selective light-filtering liquid, such as copper sulphate, for the pumping light.
Patent GB-782203-A (GB)
Title: Improvements in or relating to sealing strips
Inventor: HUNTER ROBERT LESLIE
IPC: A47K3/00
Filed: 1955-02-28
Abstract: 782,203. Baths, washbasins &c. ALLIED IRONFOUNDERS, Ltd. Nov. 18, 1955 [Feb. 28, 1955], No. 5868/55. Class 26. A strip for sealing the  edge of a bath, washbasin, draining board or the like to a vertical wall comprises a resilient onepiece moulding or extrusion having, as shown in Fig. 2, an upper part 2 extending from the wall 3 to the top of flange 5 to deflect liquid running down the wall, and a lower part 6 extending under the flange 5 to hold the strip in position and prevent its removal. Fig. 4 shows a strip contacting the wall over a larger area and having beads 8 and 12 instead of the sharpened 'edge 4 and channel-shaped lower part 6 of Fig. 2 ; further modifications of cross-sectional shape are described and illustrated.
Patent GB-858181-A (GB)
Title: Improvements in the production of diazapolymethine dyestuffs
IPC: C09B27/00
Filed: 1958-02-25
Abstract: The invention comprises diazapolymethine dyestuffs having cations of the general formula:  <FORM:0858181/IV (c)/1> wherein R is an alkyl or aryl group, Y is a divalent heteroatom or -NH-, -N (alkyl)-, -N (aryl)-, or -N (NH2)-, X is a divalent azomethine group substituted on the carbon atom, and R1 is the residue of a coupling compound. The dyestuffs may be obtained by subjecting hydrazones of the formula:  <FORM:0858181/IV (c)/2> wherein X, Y, and R have the meanings indicated above, to an oxidizing coupling reaction with coupling components in the presence of oxidizing or dehydrogenating agents.  Hydrazones mentioned include those of 3- methyl -5- anilino-1. 3. 4- thiadiazolone-(2), 3- methyl -5- phenyl-1. 3. 4- oxadiazolone- (2), 1-methyl -3- phenyl-4- nbutyl -1. 2. 4- triazolone- (5), 1 -methyl -3-phenyl -4- amino -1. 2. 4- triazolone- (5), 2-methylmercapto -4- methyl -1. 3. 4- thiadiazolone-(5), and 3- methyl -5- (41- methoxy)- anilino-1. 3. 4- thiadiazolone- (2).  As coupling components there may be used phenols, naphthols, enols, aromatic amines, or eneamines.  The oxidizing or dehydrogenating agent may be a ferric or cupric salt, ferricyanide, mercury (II) salt, cerium (IV) salt, persulphate, perborate, hypochlorite, peroxide, oxygen or air.  Yellow to greenish-blue dyes are obtained. Preferred coupling components are those containing an amino group e.g. an aromatic amine, or an indole derivative such as an alkyl or arylindole.  The basic diazapolymethine dyestuffs are specially suitable for dyeing polyacrylonitrile fibres.  In examples, 3- methyl -5- anilino -1. 3. 4- thiadiazolone -(2)- hydrazone -5- hydrochloride is coupled with dimethyl aniline in presence of ferric chloride to form a dyestuff salt of the formula:  <FORM:0858181/IV (c)/3> 2- methylmercapto -4- methyl -1. 3. 4- thiadiazo-lone -(5)-hydrazone is coupled with 3- amino-toluene in presence of ferric chloride and the dye is precipitated with a solution of zinc and sodium chlorides to form a dye salt of formula:  <FORM:0858181/IV (c)/4> Many other dyestuffs of the stated general formula are specified, including those in the production of which there are used as coupling components, naphthols, naphthol sulphonates, amino phenols, toluols, phenylene diamines, diphenylamines, ethoxy diphenylamines, toluidines, cyanoethyl anilines, hydroxyethyl anilines, phenyl pyrazolones, and acetoacetanilide. Specification 857,198 is referred to.
Patent GB-1254160-A (GB)
Title: Cyclohexane derivatives
IPC: C07C45/00
Filed: 1969-04-28
Abstract: 1,254,160. Cyclohexanol derivatives. F. HOFFMANN-LA ROCHE & CO. A.G. 28 April, 1969 [29 April, 1968], No. 6010/71. Divided out of 1,254,152. Heading C2C. The invention comprises cyclohexanol derivatives of formula in which B is a group of the formula or in which R is a C 1 -C 6  alkanoyl group. They may be prepared by (a) treating a compound of the formula with an alkali metal salt of a di(C 1 -C 6  alkyl)- amine or (b) treating a hydroperoxy compound of formula with a reducing agent. Examples are given of the preparation of 2-methyl-6-(3-hydroxy-4- methylenecyclohexan-1R-yl -4-heptanone.
Patent GB-669906-A (GB)
Title: Process and apparatus for carrying out reactions of gases with fine grained substances
IPC: B01D53/34
Filed: 1949-03-07
Abstract: <PICT:0669906/III/1> In the reaction of gases in the presence of fine-grained catalysts, the catalytic particles are carried upwardly by the gas through superposed reaction spaces 2, 3, . . ., of a vertical column 1, into each of which the gas enters through an inclined passage 4, 5, 6, . . ., the changes in direction brought about resulting in the separation from the stream of a portion of the particles which in settling by gravity is guided into the path of the entering current.  The catalytic material may be fed into the top of the column and descend through tubes 7, 9, some passing over the inclined bottom or other surface of the reaction spaces towards the gas inlet at right-angles to the ascending stream. Descent of the particles may be periodically halted by blocking of the discharge end of tubes 9 until accumulating material moves down to the gas inlets; the supply and discharge of material and gas velocity may be regulated.  Part of the material may be recirculated to a lower reaction space through connecting tubes.
Patent GB-1291647-A (GB)
Title: Apparatus for determining blood-flow in a living animal
IPC: G01F1/704
Filed: 1970-02-10
Abstract: 1291647 Measuring blood flow photoelectrically PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Feb 1970 [12 Feb 1969] 6360/70 Heading G1A In a device for measuring the blood flow from the heart through a living animal body and in which the heart is irradiated by a shielded pulsed neutron source 1, the secondary γ radiation emitted by blood flowing from the heart is measured by a scintillator and photo-multiplier 4, 5, a shield 6 being provided to prevent radiation from the directly-irradiated area falling on the detector. The measured secondary radiation intensity a given time after the heart is initially irradiated is proportional to the amount of blood pumped out of the heart in that time. Two photo-multipliers may be employed, Fig. 2 (not shown) on the same side of the body as the source. In this case the detectors are shielded from secondary radiation direct from the irradiated area by the shielding 2 of the source. Alternatively, the heart may be irradiated from the side of the body, Fig.3 (not shown) in which case there is an array of photo-multipliers located both at the front and the back of the body, with a shield located between each array and the heart. Absorbing devices 11, 11<SP>1</SP> are so shaped that equal radiation intensities from different parts of the body will produce equal detector responses. Calibration of the apparatus is obtained by irradiating oxygen-free serum in a sample bottle of known volume placed at the same distance from the source 1 as the heart would normally be. The radiation thus detected corresponds to the natural radiation from oxygenfree blood. The apparatus may be used to measure the blood flow speed in other organs by measuring the elapsed time between the detection of the flowing "radio-active front" by two spaced detectors which are not directly irradiated by the source.
Patent GB-1034615-A (GB)
Title: Improvements in or relating to processes for the metallisation of the surfaces of ceramic bodies
IPC: C04B41/51
Filed: 1965-02-15
Abstract: In a process for metallizing ceramic surfaces as defined in the parent Specification the lithium molybdate solution is saturated with a Li or an alkaline earth metal halide preferably LiF and used to coat corundum having more than 98% alumina. If only part of the surface is to be coated a binder such as tylose or methyl cellulose is added to the solution.  The metallized surface may be eletroplated or soldered.ALSO:In a process for metallizing ceramic surfaces as defined in the parent Specification the lithium molybdate solution is saturated with a Li or an alkaline earth metal halide preferably LiF and used to coat corundum having more than 98% alumina.  If only part of the surface is to be coated a binder such as tylose or methyl cellulose is added to the solution.  The metallized surface may be electroplated or soldered.
Patent GB-502339-A (GB)
Title: Improvements in or relating to machines for blowing hollow glassware
IPC: C03B9/24
Filed: 1937-06-08
Abstract: 502,339. Making hollow glassware. EVANS, W. E. (O'Neill European Machine Co. of Montreal) June 8, 1937, No. 6460/39. Divided out of 502,246. [Class 56] In a suction gathering machine of the kind described in Specifications 315,154, 470,325, and 470,326, each parison mould unit is provided with cam-operated mechanism for adjusting the time at which the plunger is withdrawn from a parison. The plunger 26 slides within a cylindrical head 19, and is raised and lowered by a rocking-lever 29, which carries at one end a roller 33 that makes contact with a stationary cam 34. The roller is slidably mounted in a frame 37 and can be moved transversely by screw 38. The screw enables'the time at which the roller makes contact with the cam, and therefore the time at which the plunger is withdrawn from a parison, to be adjusted. Specifications 502,246 and 502,340 also are referred to.
Patent GB-402433-A (GB)
Title: A process for preparing active principles or hormones
IPC: A61K38/22
Filed: 1932-03-04
Abstract: Hormone-containing liquids are obtained from parathyroid gland by adjusting the pH values of extracts of the gland, made by treatment with alkali solutions, to between 4,6 and 5,0, e.g. with sulphuric acid, separating insoluble matters, adding alcohol to precipitate alkali sulphates, separating the precipitates and evaporating off the alcohol.  The aqueous solution after precipitation may be further treated with alcohol and sulphuric acid, allowed to stand, adjusted to pH = 4.8 with alkali, filtered and freed from alcohol by evaporation.
Patent GB-722990-A (GB)
Title: Improvements in electric plug and socket connectors
IPC: H01R13/646
Filed: 1950-12-13
Abstract: 722,990. Two-part couplings. SHARDLOW ELECTRIC WIRES, Ltd., and JONES, P. Feb. 27, 1952 [Dec. 13, 1950], No. 6648/54. Divided out of 722,894. Drawings to Specification. Class 38 (1). The Specification relates to the socket connector disclosed in Specification 722,894, from which the present case is divided.
Patent GB-773083-A (GB)
Title: Improvements in or relating to apparatus for compacting particulate material in a container
IPC: B65B1/22
Filed: 1954-03-09
Abstract: 773,083. Jigging-apparatus. BARRACLOUGH, Ltd., R. W., and BARRACLOUGH, R. W. March 9, 1955 [March 9, 1954], No. 6773/54. Class 94(1). Apparatus for subjecting a container filled with tea or other particulate material to a predetermined number of vibrations or oscillations, comprises a platform 10 fitted with spring clips 11 for securing the container and mounted on a plunger 12 which is movable vertically in a pillar 13 under the action of a cam 16 which causes the platform to rise slowly and then fall suddenly under the action of springs 20. The cam is mounted on a manually-rotatable shaft 14 which carries a gear 22 meshing with a gear 23 carrying a pin 25. A lever 26 pivoted at 28 is urged by a spring (not shown) into an upper position in which a pin 24 thereon prevents movement of the pin 25. The ratio of the gears 22 and 23 is 1 : 6, so that if the lever 26 is depressed manually to allow the cam to be rotated and then released, the cam will automatically be brought to rest after twelve oscillations of the platform when the pins reengage. A boss 33 secured to the underside of the platform is arranged to engage a rubber seating 32 on the top of the pillar to reduce shock. According to the Provisional Specification, the cam may be driven by a motor. The apparatus is used mainly to determine the volume of a given weight of tea, the tea being weighed into a graduated glass container which is then placed on the platform 10 and subjected to twelve oscillations. The volume of the compacted tea can then be read off the graduations.
Patent GB-137678-A (GB)
Title: Improvements connected with roof glazing bars
IPC: E04D3/08
Filed: 1919-03-19
Abstract: 137,678. Heywood, W. H. March 19, 1919. Glazing.-Means for supporting the glazing-bars of glazed roofs, skylights, &c. comprise metal seats or chairs a having upstanding portions a<1>, a<1> spaced apart to receive weather-bars b and cut away at a<3> to receive glazing-bars c. The glazing- bars, chairs, and purlins may be secured by spindles c or bv screws g, Fig. 2, passing through additional lugs a<4> and screws passing through cross-members a<2>. The weather-bars b abut against the glazing- bars c, so that lateral and longitudinal movement is prevented. Openings i, not in alinement, form outlets for condensation water. Similar openings may be provided in the weatherbars.
Patent GB-200544-A (GB)
Title: Improvements in and relating to fuel-delivery pumps for internal combustion engines
IPC: F02M59/02
Filed: 1922-03-08
Abstract: 200,544. Hughes, C. March 8, 1922. Valveless pumps ; p u m p s combined with other types.- In a valveless fuel pump the fuel which enters the barrel 1 through a pipe 4 is forced on the downstroke through a pipe 6 into the upper end of the barrel where it mixes with air or air and atomized fuel forced through a space round the piston rod 3 by a diaphragm air pump 7, the diaphragm of which is associated with the plunger of the pump. The mixture is forced on the upstroke through the pipe 5 to the engine. Leakage fuel is returned from the cylinder 7 to the suction tank of the pump 1.
Patent GB-709992-A (GB)
Title: Improvements in and relating to the manufacture of 1-chloro-4-methylthiaxanthone andintermediates therefor
Inventor: COOMBS MAURICE MARTIN
IPC: C07D335/16
Filed: 1951-03-22
Abstract: The invention comprises the compound 5-chloro-2-methyldiphenylsulphide-21-carboxylic acid.  It also comprises a process for the removal of the elements of water from that compound to give 1-chloro-4-methylthiaxanthone.  The latter product is useful as intermediate which on reaction with b -diethylaminoethylamine gives 1-b -diethylaminoethylamino-4-methylthiaxanthone.  The 5-chloro-2-methyldiphenylsulphide-21-carboxylic acid may be obtained by condensing 5-chloro-2-methylthiophenol with o-chlorobenzoic acid, preferably in the presence of acid-binding agents, and, e.g., in benzyl alcohol solution, or by condensing 5-chloro-2-methylthiophenol with diazotized anthranilic acid.  In examples: (1) 4-chlorotoluene - 2 - sulphonyl chloride (prepared from p-chlorotoluene and chlorosulphonic acid and characterized as its anilide) is reduced with zinc dust at below -5 DEG  C. to give 5-chloro-2-methylthiophenol.  This compound, reacted with o-chlorobenzoic acid in the presence of potassium carbonate, potassium iodide and copper powder gives 5 - chloro - 2 - methyl - diphenylsulphide - 21-carboxylic acid.  Heating the latter with strong sulphuric acid (a phosphorus halide or aluminium chloride are specified as alternatives) gives 1 - chloro - 4 - methylthiaxanthone; (2) diazotized anthranilic acid added to an ammonia solution of 5-chloro-2-methyl-thiophenol gives a precipitate (of what is thought to be the diazonium mercaptide), which on decomposition gives 5 - chloro - 2 - methyldiphenylsulphide - 21-carboxylic acid together with a small amount of bis-(5-chloro-2-methyl phenyl) disulphide.
Patent GB-116251-A (GB)
Title: Improvements in and relating to Trouser Stretchers.
Inventor: WALKER HENRY CECIL
IPC: A47G25/72
Filed: 1918-04-24
Abstract: 116,251. Walker, H. C. April 24, 1918. Combined presses and stretchers.-The top and bottom gripping devices A, B are each formed of two oblong boards a, b lined with velvet &c. j, the upper shorter board being hinged to the lower at one end c, while in use they are held together by a screw bolt d<1> engaging a socket x at one end and by a pivoted screwed rod d engaging in a recess j at the other end. The gripping bars are connected by two pairs of angle-iron tensioning members F, each pair capable of slidable extension against the action of a spring l, and either permanently connected to the lower gripping device or removably connected thereto by a headed pin e and a key-hole slot n. At the upper end, the member f<1> is connected adjustably by a headed pin c and a series of keyhole slots n<1>, n<2>, n<3>, thereby allowing the trousers to be stretched after being held in position. The two angle-irons f, f<1>, forming a member F, are connected together by a pin g on one and an inclined slot h near the end of the other, whereby, when not required, the member f can be turned round on the pivot g and be folded against the top member f<1>. The press is of the kind described in Specification 104,043, with the exception that the hinge t is arranged on the inner side of the creaser P, and a plate s on each creaser saves one bolt, the bolt g being operative for both upper and lower portions.
Patent GB-505133-A (GB)
Title: Improvements in chain conveyors
IPC: B65G17/42
Filed: 1938-03-04
Abstract: 505,133. Endless - chain conveyers. TAYLOR, H. C., and U.D. ENGINEERING CO., Ltd. March 4, 1938, No. 6909. [Class 78 (i)] [Also in Group XXII] A conveyer comprises an oval link chain 10, 11. and platforms 12 secured thereto or formed integral therewith. In the former construction each platform is formed with a slot 13, Fig. 3, in which one side of a link 10 is partially engaged. The slot is filled with metal 14 by a welding or brazing process.
Patent GB-1186882-A (GB)
Title: Improvements in Fittings for Mounting Accessories on Walls and Like Supports
Inventor: BARKER CLIFFORD LEWIS
IPC: E03C1/06
Filed: 1967-02-14
Abstract: 1,186,882. Brackets. WALKER CROSWELLER & CO. Ltd. 14 Feb., 1968 [14 Feb., 1967], No. 6996/67. Heading A4B. [Also in Division B2] A wall mounted fitting for adjustably supporting a combined handgrip and spray nozzle (24) comprises a base plate 1 carrying a pair of pillars 11, 12, a rocker 2 disposed between the pillars 11, 12 with integral, axially aligned spigots 17, 18 journalled in the ends of slots 13, 14 in the pillars 11, 12, a pocket 22 in the front of the rocker 2 to detachably receive a projection (23) on the handgrip (24), and parallel grooves 19 in the rear of the rocker 2 which selectively engage a rib 21 on the base 1 to resiliently hold the rocker 2 in any one of a plurality of angular positions relative to the base 1. In a modification the grooves 19 and rib 21 may respectively comprise ribs and a groove. A pair of slots 8 in the base 1 define between them a plate 10 which resiliently bears on the rear of the rocker 2. A cover 3 with a front opening 26 has diametrically opposed lips 25 which are a snap fit on the base 1. The interior of the cover 3 carries a pair of cheeks 27 which prevent flexing apart of the pillars 11, 12 when the cover 3 is fitted.
Patent GB-617514-A (GB)
Title: Improvements in hair driers
IPC: A45D20/30
Filed: 1946-03-06
Abstract: 617,514. Hair driers. BERTRAND, G. F. J. March 6, 1946, No. 6999. Convention date, Dec. 8, 1938. [Class 81 (ii)] [Also in Groups XIV and XXXVII] A hair drier of the kind consisting of a hot air circulation headpiece pivoted on a supporting stand and wherein air heated by electric resistances is circulated the said air being set in motion by a fan driven by an electric motor, has the motor 2 driving the fan 3 connected in shunt to a variable fraction of the heating resistance 4. As shown in Fig. 3 the air is heated by resistances R1 and R2, connected in parallel, and arranged to allow progressive intensities of heating by manipulation of the switch 41. One resistance R, is employed as a potentiometer for reducing the voltage at the terminals of the single phase motor 2 and thereby diminishing its speed, a tapping 42 being provided on R1 and connected to contact 43 so that when the reversing switch 45 is on 43 the voltage at the motor terminals is reduced to a fraction of the initial voltage and hence with only moderate heating the speed of the motor is reduced, while when the reversing switch is on 44 the tapping is out of circuit and the motor runs at maximum speed. In modifications, Figs. 4 and 5 (not shown), the motor is connected across the terminals of a variable plate resistance which in one case is manually controlled and in the other is controlled by a bimetallic strip placed within the head-piece and hence influenced directly by the temperature prevailing therein. The Specification as open to inspection under Sect. 91 comprises also a spring-balanced stand (see Group XIV) adapted to permit the articulation of the head-piece. This subject-matter does not appear in the Specification as accepted.